Perhaps the most frustrating part of formulating a solid, reliable backup strategy for an Oracle database is that it usually overlaps two different kinds of people: the database administrator and the system administrator. Formulating an RMAN strategy is no different.
Its tight integration with the Oracle RDBMS means a system administrator must establish a working knowledge of an Oracle database. But, the reliance on external tape storage systems and the network topology makes it critical that the DBA be able to administer networked computer systems. This makes for an interesting separation of duties and for headaches on each side.
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